Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:27:21 2013 Optimize a model with 2400 rows, 103200 columns and 208100 nonzeros Presolve removed 200 rows and 300 columns Presolve time: 0.48s Presolved: 2200 rows, 102900 columns, 205800 nonzeros Variable types: 102000 continuous, 900 integer (900 binary) Root relaxation: objective 9.481640e+05, 7967 iterations, 1.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 948163.962 0 4 - 948163.962 - - 1s H 0 0 1150046.3192 948163.962 17.6% - 2s 0 0 948315.840 0 4 1150046.32 948315.840 17.5% - 2s 0 0 948355.975 0 4 1150046.32 948355.975 17.5% - 3s 0 0 948368.092 0 4 1150046.32 948368.092 17.5% - 3s 0 0 948371.165 0 4 1150046.32 948371.165 17.5% - 3s 0 0 948379.691 0 4 1150046.32 948379.691 17.5% - 4s 0 0 948379.843 0 4 1150046.32 948379.843 17.5% - 4s 0 0 948381.054 0 4 1150046.32 948381.054 17.5% - 4s 0 0 948381.566 0 4 1150046.32 948381.566 17.5% - 5s 0 0 948381.967 0 4 1150046.32 948381.967 17.5% - 5s 0 0 948382.328 0 4 1150046.32 948382.328 17.5% - 5s 0 0 948382.493 0 4 1150046.32 948382.493 17.5% - 6s 0 0 948382.493 0 4 1150046.32 948382.493 17.5% - 6s 0 2 948422.059 0 4 1150046.32 948422.059 17.5% - 7s 16 18 949816.583 15 1 1150046.32 948463.693 17.5% 113 10s H 27 13 950400.40339 948463.693 0.20% 75.1 11s 56 15 cutoff 3 950400.403 948979.306 0.15% 129 15s * 68 19 17 950276.23626 949275.972 0.11% 121 16s 154 21 949887.593 68 1 950276.236 949712.843 0.06% 68.9 20s 313 21 950102.354 18 1 950276.236 949739.649 0.06% 37.9 25s Cutting planes: Flow cover: 27 Explored 386 nodes (22935 simplex iterations) in 27.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.502762362556e+05, best bound 9.501818943297e+05, gap 0.0099%